Improvement in spindles for spinning-machines



J. C. ARNOLD.

SPINDLE FOR SPINNING-MACHINES. No. 170,929. Patented Dec. 14,1875.

N.FETERS. PHOTO-LITHOGKAFHER. WASHINGTON. D C.

UNITED STATES PATENT QFFIGE.

JOHN ARNOLD, OF WHITINSVILLE, MASSACHUSETTS.

IMPROVEMENT IN SPINDLES FOR SPINNING-MACHINES.

Specification forming part of Letters Patent No. [70,929, dated December14, 1875; application filed August 30, 1875.

To all whom it may concern:

Be it known that 1, JOHN G. ARNOLD, of Whitinsville, in the county ofWorcester and State of Massachusetts, have invented certain new anduseful Improvements in Spindles for Spinning-Machine; and I do herebydeclare that the following is a full, clear, and exact descriptionthereof, which will enable others skilled in the art to which itpertains to make and use the same, reference being had to theaccompanying drawing, and to the letters of reference marked there on,which form a part of this specification.

My invention relates to improvements in spinning-machine and otherspindles, and its step and bolster combined and consists of an ordinaryspindle, provided with projections somewhere between the whirl and theextreme lower end of the spindle, in combination with a doublescrew-thread cut in the upper end of the bearing. Below the saidscrew-thread is made an annular recess in the bearing, in which theprojections on the spindle are allowed freely to revolve, after thespindle has been screwed down to its proper bearingin the step andbolster combined.

The aforesaid step and bolster combined is secured to the rail by meansof a set-screw or its equivalent, in the usual manner.

By this, my improved spindle and step and bolster combined, the spindleis kept rotating in its proper position during the revolution of thespindle and bobbin. When the spindle is to be removed from the step andbolster com bined, it is only necessary to turn it in an oppositedirection to that of its revolution when the projections of the spindleenter the double-threaded screw of the bearing, and thus raise it up andout of the bearing.

The accompanying drawing represents acentral longitudinal section of myinvention, on which a represents the bobbin, and b represents thespindle with its whirl c. d d represent projections on the spindle b. ce represent a double-threaded female screw in the step and bolstercombined, f, which screw-thread terminates as an annular recess, g, inwhich the projections d d are made to revolve during the revolution ofthe spindle b.

The upper end of the step and bolster combined is made as an oil-cup, h,from which the oil is conveyed to the step and lower part of the spindlethrough the female screw-thread c e. The lower end t' of the spindle brests in a suitable step in the bearing f.

Having thus fully described the nature, construction, and operation ofmy invention, 1 wish to secure by Letters Patent, and claim-- Incombination with the spindle I), provided with projections d d, the stepand bolster combined, f, having screw-thread e c, and annular groo ve g,as and for the purpose set forth JOHN G. ARNOLD. Witnesses:

GEORGE F. SEARLES, G. W. RAWSON.

